Messages in this thread | | | From | "Andrew Bird (Sphere Systems)" <> | Subject | Re: [PATCH] USB CDC-Ether - Add ZTE WWAN matches before generic Ethernet | Date | Sat, 19 May 2012 18:42:38 +0100 |
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On Saturday 19 May 2012, Bjørn Mork wrote: > Andrew Bird <ajb@spheresystems.co.uk> writes: > > Some ZTE WWAN devices have generic CDC Ether descriptors. Add those > > into the whitelist so that we get FLAG_WWAN on the interface > > Are you sure none of these export QMI via the CDC Ether control > interface? Or are they not Qualcomm devices at all? > > As usual, if you see a spurious "CDC: unexpected notification 01" logged > from cdc_ether, then there is reason to examine those closer. If you > don't see any such messages, then there isn't any QMI there. > > > Bjørn
Hi Bjørn, No these are devices that use the Icera chipset. They have cdc-acm serial ports and firmware has implemented AT commands for (de)activating the pseudo Ethernet and getting IP + DNS values etc. Actually applying this patch will provide little in terms of operation except to make the interface name wwan%d unstead of usb%d and to flag the interface such that Network Manager does not try to bring it up via DHCP as soon as it appears, like it would with a fixed Ethernet interface.
Good tip about the 'unexpected notification 01' I'll look out for that!
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